crwdns2934241:0crwdne2934241:0 Dan

crwdns2934249:0crwdne2934249:0:

First check your firmware level. Follow this Apple TN: [http://support.apple.com/kb/HT1237|EFI and SMC firmware updates for Intel-based Macs]. Make sure you have the latest.

Sounds like you might have a bad SATA cable. Who's cable did you use and the PN#

Also did you swap the drives around by chance?

crwdns2915684:0crwdne2915684:0:

open